cache: improved invalidation system

app/widget/slider/base/numericsliderbase.cpp

@@ -22,6 +22,7 @@
 
 #include "common/qtutils.h"
 #include "config/config.h"
+#include "core.h"
 
 namespace olive {
 
@@ -34,7 +35,8 @@ NumericSliderBase::NumericSliderBase(QWidget *parent) :
   has_max_(false),
   dragged_diff_(0),
   drag_multiplier_(1.0),
-  setting_drag_value_(false)
+  setting_drag_value_(false),
+  is_effects_slider_(false)
 {
   // Numeric sliders are draggable, so we have a cursor that indicates that
   setCursor(Qt::SizeHorCursor);
@@ -60,6 +62,10 @@ void NumericSliderBase::LabelPressed()
 
   connect(drag_ladder_, &SliderLadder::DraggedByValue, this, &NumericSliderBase::LadderDragged);
   connect(drag_ladder_, &SliderLadder::Released, this, &NumericSliderBase::LadderReleased);
+
+  if (is_effects_slider_) {
+    Core::instance()->SetEffectsSliderIsBeingDragged(true);
+  }
 }
 
 void NumericSliderBase::LadderDragged(int value, double multiplier)
@@ -90,6 +96,10 @@ void NumericSliderBase::LadderDragged(int value, double multiplier)
 
 void NumericSliderBase::LadderReleased()
 {
+  if (is_effects_slider_) {
+    Core::instance()->SetEffectsSliderIsBeingDragged(false);
+  }
+
   drag_ladder_->deleteLater();
   drag_ladder_ = nullptr;
   dragged_diff_ = 0;